This exhaust by HKS will reduce your exhaust back pressure by 60% allowing for a much greater increase in HP & TQ that's design to push over 300HP. And will eliminate 17lbs or 7.6kg of weight from your car. This cat-back exhaust combines great with the HKS stainless front pipe & 4-2-1 header for maximum performance.

Great exhaust, light weight, clean finish that works well with my Blue BRZ. As for drone, if all other exhaust parts are stock then yes, this is a reasonable system. However, if you run UEL or EL headers that are uncatted, the drone on the highway is rediculous. Its so bad, I've uninstalled the kit until I take the time to find silencers.

Uncatted UEL/This exhaust is a great weekend ride. But daily.. yuck.

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Lightweight, Low Sound, and Looks!

October 22, 2015

Reviewer:
Mark from SF Bay Area/Sac, CA United States

Install was easy on my FR-S and I did it alone. The hardest part was removing the stock exhaust from the rubber hangers (just spray lubricant like WD-40 on). Expensive but quality product. I was looking at the Q300, but went with this because it's lighter. I saved 17 pounds! I'm telling you, it's so light, my wife picked it up and brought the box inside the house by herself. I was very surprised how quiet it was when I first started it up (it almost sounds like stock). But the sound is more noticeable for sure. Drone was very low/non-existent and not annoying on the freeway. The videos on YouTube make it sound louder than it really is. If you hear it in person, it sounds close to stock. I think it sounds slightly quieter than a stock 350z. It's a lightweight exhaust, great looks and a nice deep sound that is not annoying. Josh is the man! I'll be purchasing more products at KamiSpeed. Great price and customer service here!